Fancy-check powee-loom



NVFETERS. FHOTUUTHOGRAPHER. WASHINGTON. Dy C4 E. BUR'no MANCHESTER.CONNECTICUTL- FANCY-CHECK iownizmooivr.

Specification of Letterslatent No.l7,925,idatedlFebruary 4, 1851-.: l i

`To all whom t may concern.' l

Beitknown that I, ENooH Bonnot Manchester, inthe county of Hartford andState of Connecticut, have' `invented certain Im-4 ;provements inFancy-,Check Looms, and

\ that the following is a full, clear, and exact description of theprinciple or character' which distinguishes them `from `other thingsbefore known l. and of the `usual manner of making, modifying, and*using the same, referencebeing had to the accompany-` Figure l,` is aside elevation, Fig. 2, and Fig. 3` end elevations, Figa a 4top plan,Fig. 5 an enlarged View of `theheddle shifting apparatus, and Fig. 6 atop plan of the same, Fig. 7 an enlarged view of the` pin` Iwheel (y). y

My improvement on the fancy check power loom consists in anindelinitenumber `of shuttle boxes, l: connected together by joints, attheirlowercorners, formingthem into1 anendless chainband, by uniting thetwo ends. This chainis hung upon a race beam, and stretched into aparallelo;-` `grammic figure, by another square` head,

square headona rod running through the hung on a pivot inthe lswordofthe lay. The runningshuttlew on thetop, level with 1the top oftherace, the boxes extend clownward, on either "sideoftherace to the lowershuttle, whichlies bottom upward `on the .lower squaregfThe advantagegained by thislnew arrangement of boxes, is the following, 1st,thelboxesbalance each other,

rendering unnecessary the `counter `balancing weights, or springs, andhence they shift` with moreease. 2nd, as the shuttle extendsdownwardtoward the centerfof motion of the lay, consequently the lay,though carrying twenty shuttles, may have as great speed as the-plainloom, which cannot be the case, when the shuttle boxes are detached from`the lay, and it', of necessity brought to a statelof rest, while theshut`- tlc lis-passing` through the web, and also a` new, and improvedmode of` operating the heddles, for forming variegated sheds, by

'the combination fof the regular worm,

double horizontal rectangular levers, vertical notched levers,` pinbarrel, new levers,

y and draw Wires,by which combination, the

heddles arefsprung upwards and downward, to form theshed, and asarbitrarilydiverse, in their order, as is affected by the Jacquardmachine, in proportion -to the number of.

l a spur wheel lquarter of a revolution, (e z'), one square at (t), theslides (q1, shoulder of the limb (u), which has a notch g'that servestohold the wheel ,(0) stationary, V.by one of its pins, until requiredto` move,

heddles employed. The advantage oflthis `modefof operatingtheheddles,`are, sim# plicity,ease, and accuracy, every motionbeing positive, andupon trial, oundto be perfectly satisfactory.

(0;) is the frame, .to which the several parts are lattached. ,Theshuttle boxes (i), maybe made of sheet metal,` bent into` a square tube,havingaslit or opening in the upper side, for the Vpassage of thepicker;`

these are attached to each other, by hinge jointsat their lower corners,or they may be made fast to a latihinge joint band, and

the two extremities joined together by 1hinge, thus forming an endlesschain of 1boxes,` thenumber of which'may be in-` creased indefinitelyaccording to the variety and numbers of colors` to be introduced intothe required pattern. This' chain passes over the square heads cfaspindle (K),

`which extends through therace beam (g),

and has on the other end, a square (l), on

. each square of which, is a shuttle box, form- `ing a square `of fourshuttle boxes,..which revolve with` the rods; these boxes receive l.theshuttles two or more in succession, from` the chain of boxes, and thenthrow them lback in theysame order, to the,` chainboxes, .,weaving, whatis called, thread about. The lchain of shuttle boxes (Zn) are broughtinto a parallelogrammic ligure by another `square headed spindle m), onthe end` of which is".`

n), 3 which i is turned oneeach strokeV of the lay, and presents a newshuttle to the action of the picker. l The wheel (o) is exactly doublethe size, and` has ldouble the number of teeth, of the wheel (a), andVhas in itsside, eight pins, (P), at

f1 equal distance from each other, thiswheel` pin, at ra time by theaction of ,thesliders' (g1) i -and (g2), pressing upward aga-inst one ofis `moved aroundtthe distance of one the aforesaid pins gl) is lifted`by the bent u lever (l), having` its fulcrum at (s.) ,and is acted on atitsupper end, by the cam (t), `on the crank shaft` (b).

e l l l To cause the Wheel (lo), and the `chain of shuttle boxes to`move in the opposite direction,the pins (,P),l are actedupon by theslide (g2), and the lever (r2), hich is also g2) in yrising l. strikethe but when eitherhof the slides, (g1 gl2)frise,.to

operated on by theI Acam shift the-boxes, they strike the shoulder ofthe limb and lift it from the in, thus unlocking the wheel (o), beforestriking the pin (P) to move the wheel (o).

(o) is a spring which presses the limb (u) down on the pin. On the shaft(c) is an irregular worm cam (fw), the oblique part of the threads,l ofwhich causes the spur vvh'eel (X) to move around, the distance of onetooth, at each revolution of the cam (WV), on the shaft of the wheel(X), lis a fiat wheel (y), having a circle of pins, which are stuck, ineither face of the wheel, according to the desired pat-tern. The pins onone side of this wheel act upon the tail of the lever (z) which has itsfulcrum at (1), and the upper end acting on the lever (r1) places it ina position, to be acted on by the cam (t). The pins in the opposite sideof the wheel (y) press on the lever (2),

.having its fulcrum at (3), which forces the lever (r2) intona/positionto beworked by the cam Y(')mand [at the same time throw the lever (r1),out. Thus the levers (111 r2), are acted on alternately, by the cam (t),which, by the slides (g1, g2), and the wheels (0 and a), cause t-heshuttle boxes to shift either forward or backward as the ligure mayrequire, bringing the requisite shuttle to a position to be acted uponby the picker. In complex patterns, when a great variety of shifts arerequisite, I put a chain band, (admitting at the joints, pins on eitherside), around a small notched pulley, on the shaft of the wheel (y), andanother notched pulley, hung on the opposite side of the loom,stretching the chain bandacross the whole breadth of the loom frame; thepins, acting on the levers (z and 2) in the same manner that the pins doin the wheel (y).

The apparatus for working the heddles', giving them the variety ofchanges required, in complicated patterns, is described as follows: Onthe cam shaft (c), of the common loom, is a cam wheel (6), having anirregular groove in its periphery, consisting of two oblique offsets,directly opposite each other, in which a steel stud on the ends of thedouble right angle lever (7 works, which receives a lateral motiontherefrom, at every semi revolution of the cam shaft (c), and

imparts avertical motion to its other end, the lever (7 is made double,the two sides being made fast on a shaft at the center of its motion,and a bar across the end of the horizontal part another double lever (8)constructed like the foregoing though a little shorter hung, andfastened to a shaft, and a b-ar across the end of the horizontal part,having its bearings or central motion within,

vand above, the double lever (7), these are so connected by the links(9), that when the end of the double lever (7) is depressed,

by the action of t-he'camwheel (6), and steel stud, the end of thedouble lever (8) will rise (e. z'.) the bars across their ends willalternately meet each other and recede from each other at every beatofthe lay; the harness or heddles are attached, and suspended, in theusual way, to the upper lever beams (10), these parts have beenshortened down, in the models, to save room. The wires (11), occupy theplace of the heddles, and are attached, at their lower ends, to thelower lever beams (12). The vertical levers and rods (13), join theouter ends of the upper and lower lever beams (10 and 12), and havenotches on their outsides, into which the bar on the end of the doublelever (8) catches, to lift them, and other notches, on their innersides, into which the bar of the double lever (7 catches t0 depressthem, above the inner notches is a shoulder which rests on the bar ofthe double lever (7 when at rest.

The drawing shows the apparatus for only four heddles, but the numbermay be increased indefinitely; a cylinder (14) is hung on standards,made fast to the frame that supports the double rectangular levers, andat right angles with it, and the cam shaft (c), on the surface of thecylinder, are holes, parallel with its axis, equal in number to theheddles employed, and extending around the cylinder (14), at equaldistances from each other, and equal in number, to thenumber of teeth inthe ratchet wheel, on its axis, hereafter to be described, into theseholes, are stuck pins, where it is required in the pattern to moveeither of the heddles up while the others move down. These pins act on aseries of right angled, or knee levers (15), the other end of which, areconnected with the vertical levers and rods (13), and draw them inwardand away from the bar of the double rectangular lever (8) which wouldotherwise lift them, and the notch on the inner side, catching on thebar of the double rectangular lever (7 is by t drawn down, and theheddles between the opposite ends of the levers (10 and 12) areelevated. The cylinder (14) is turned forward at every beat of the lay,bringing a fresh line of holes and Apins under the right angle, or kneelevers (15), by a ratchet wheel (16), attached to it, having the samenumber of teeth, that there are holesv around the cylinder. (14), andturned by a pawl (17) on the end of a cam lever (18), which is thrownforward at each semi-revolution of the cam shaft (c), by the projections(19) on the side of the irregular cam (6). The cylinder (14) is held toits place by the spring pawl (20), pressing into the notches of the ange(21), on its ends thus wherever pins are placed in the cylinder (14) theheddles corresponding therewith are made to rise, Vas the pins come incontact in succession with the heads of the knee levers (15) andtheother heddles which correspond tothe place Where the holes are left openare left to be depressed by the bar of the double rectangular lever (8).

I have thus fully described my improvement in fancycheck power looms, Ihave adverted to many things in this description, which I do not mean toclaim as new. Some of them are of my own invention, and heretofore usedby me,`such as the revolving boX, shuttle boxes on each end of the lay,to weave threadsabout, the pin wheel or chain bands of pins byJthemselves having long since used them all myself and in a word Idisclaim together with the forenamed, considered singly, everythingpertaining to the common power loom,but y I do claim as my invention l.The connecting a series of shuttle boxes by joints at their lowercorners, or attaching them to a flat jointed chain, and connecting theirextremities,fso as to form an endless chain of boxes, and bringing theminto a parallelogrammic figure, by means of two square heads of a sizeto tit the space between the joints of the boxes, or the chain, and hungon journals, one on the end of the race beam, and the other on the swordof the lay, substantially as heretofore described.`

`giving them, with the heddles, an upward and downward movement, in anyirregular manner desired, substantially as described in thespecifications const-itutinga new and advantageous modus operandi of`forming a variegated shade.

j ENOCH BURR. Witnesses: i

HENRY B. WINTER, MARY I-I. PIERCE.

